Alvin Day, M.D.
NPI 1811300726 · Rheumatology Physician · Lexington, SC
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alvin Day, M.D. is a Rheumatology Physician provider in Lexington, SC (NPI 1811300726).
Provider details
- NPI number
- 1811300726
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- LL36982 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
225 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 92 | $145 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 92 | $114 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 41 | $75 |
Typical Medicare-allowed amounts for these services range $75–$145 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Teriparatide | 57 | — |
| Prednisone | 53 | 30 |
| Hydroxychloroquine Sulfate | 33 | 21 |
| Methotrexate Sodiumbrand: Methotrexate | 30 | 22 |
| Alendronate Sodium | 29 | 14 |
| Abaloparatidebrand: Tymlos | 26 | — |
| Ibandronate Sodium | 11 | — |
Practice location
Mailing address
Additional practice locations (1)
- 2 Medical Park Rd Ste 501Columbia, SC 29203-6839Phone: (803) 540-1000Fax: (803) 540-1011
Registry dates
- Enumerated
- 2014-06-09
- Last updated
- 2024-09-09
- Certified
- 2024-09-09
Frequently asked questions
- What is Alvin Day's NPI number?
- Alvin Day's National Provider Identifier (NPI) is 1811300726, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alvin Day's specialty?
- Alvin Day is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Alvin Day located?
- Alvin Day's practice location on file with NPPES is 5336 Sunset Blvd Ste a, Lexington, SC 29072-9393.
- What is Alvin Day's phone number?
- The practice phone number listed in the NPPES registry for Alvin Day is (803) 567-8900.
- Does Alvin Day accept Medicare?
- Alvin Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alvin Day's NPI active?
- Yes — Alvin Day's NPI (1811300726) is active in the NPPES registry as of the last update on 2024-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.